Crocodiles are the only surviving Yi Long. As a cold-blooded egg-laying animal, it has not changed much for a long time, and it is the only predator and scavenger in water or land.
Crocodiles have been recorded in ancient China. They are called crocodiles in the Book of Rites. Later, in the Tang Dynasty, Han Yu wrote "Sacrificing Crocodiles" because of crocodiles, which was just and severe and scared away crocodiles. In Ming Dynasty, Li Shizhen listed crocodiles as medicinal in Compendium of Materia Medica "Scale-Crocodile-Solution: Dragon Map" and defined their medicinal properties as "Indication: heart disease" and "dampness causing disease", which undoubtedly explained the role of crocodiles in human life. In modern times, crocodile skins are used to make luxury goods to show their value.
In people's minds, crocodiles are "evil fish". When it comes to crocodiles, I immediately think of maw, dense sharp teeth, hard armor, ready to eat people. It has keen vision and hearing, clumsy appearance, but very flexible movements. Crocodiles grow like this just to eat meat. All animals, including people, are its food. No matter how fierce an animal sees it, it can only take the initiative to avoid it and never dare to provoke it easily.
The late Cretaceous is an important period in the evolutionary history of mammals. At that time, many populations began to differentiate to adapt to different microenvironments.
Horned crocodiles are horned crocodiles, and there is no so-called classification.
The study of crocodile ancestors seems unclear. .